niles



@glitten tstes ntnt @Hite PETER H. NILES, OF BOSTON, ASSIGNOR TO HIMSELF ANDAUGUSTUS RUSS, 0F CAMBRIDGE, MASSACHUSETTS.'

Letters lfatent No. (58,380, dated September 3, 1367.

IMPBOVEMENT IN HOSE-COUPLINGS.

Be it known that I, PETER H. NILES, of Boston, in the county of Suffolk, and State of l\Iassachusettsl1ave invented a new and useful Improvement iuCouplings for Hose and other Tubing; and Ido hereby declare that the following is a full and exact description thereof, reference being had to the accompanyingdrawings, and

l to the letters of reference marked thereon.

, To enable others skilled in the art to make and use my invention, I will proceed to describe its'construc-4H tion and operation. Upon the accompanying drawingf Figure 1 is an elevation of the coupling as connected.

Figure 2 isa sectional View ofthe same.

Figure 3 is a'section of each ofthe two parts ofthe coupling disconnected.

Figure 4 is an elevation ofthe male portion of thecoupling with the nut run'back, showing the screw.

Figure 5 is an elevation of the female portion of the coupling.

Figures Gand 'T'nre plans of tbe male and female portions of the coupling.

Upon the body of the male section of thecoupliug is cut a screw, F, upon which-the nut B travels, as shown in ig. 4. Turning this nut B forward, it presses against the Washer C, which is forced against the ring D, ninde'of rubber or other elastic material, and held in position by the flange E, as shown in fig. 2. The 'N inner faces of both flange E and washer AC are convex, and coincide with the sides of the elastic ring D, which are slightly concave, imparting an easy movement to the ring in expanding. Turning the nut B backward, the pressure is removed from the washer, ring, and flanges, the ring D contracts, and resumes its original siz'e, which .-illon's the male and female sections to be readily detached. The pin H, shown in fig. 6, in connection with the stop I, in the groove J', in iig. 7, prevents the rnale'and female sections from acting independently, and holds the two sections in position while the nut B performs its oiiiee;

I claiu'i tbe construction of a. solf-pncking'conpling, composed of an elastic ring, expanded into a. recess in the opposite section of the coupling by means substantially as described.

I claim the expanding ring D, in conformationwith the recess G, forming a self-packing coupling, subl stantially as above described. 4

l I claim the ring D, nut B, washer C, and iange E, acting in combination, substantially as above described.

P. H. NILES.

Witnesses:

J. M. F. HOWARD, M. H. DURGIN. 

